Rajesh Balamohan created HADOOP-14680:
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Summary: Azure: IndexOutOfBoundsException in BlockBlobInputStream
Key: HADOOP-14680
URL: https://issues.apache.org/jira/browse/HADOOP-14680
Project: Hadoop Common
Issue Type: Bug
Components: fs/azure
Reporter: Rajesh Balamohan
Priority: Minor
https://github.com/apache/hadoop/blob/trunk/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/BlockBlobInputStream.java#L361
On certain conditions, BlockBlobInputStream can throw
IndexOutOfBoundsException. Following is an example
{{length:297898, offset:4194304, buf.len:4492202, writePos:4194304}} :
In this case, {{MemoryOutputStream::capacity()}} would end up returning
negative value and can cause {{IndexOutOfBoundsException}}
It should be {{return buffer.length - offset;}} to determine current capacity.
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